A coeporation of



' No. '770,482- PATENTED SEPT. 20, 1904,

H. P. TIPPETT. METALLIC PACKING.

APPLIOATION FILED MAY 21. 1904.

N0 MODEL.

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UNTTED STATES Patented September 20, 1904.

PATENT OFFICE.

HAROLD P. TIPPETT, OF COLUMBUS, OHIO, ASSIGNOR TO THE N. L. HAYDEN COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

METALLIC PACKING.

SPECIFICATION formingpart of Letters Patent N o. 770,482, dated September 20, 1904.

Application iled May 21, 1904. Serial No. 209,009. (No model.)

diiiiculties heretofore encountered are over-v come. In such packings where segments that interlock have been employed it has been necessary to force said segments into their locking engagement around the rod, and when once they are locked togetherit is impossible to remove them without breaking the lips or entirely disengaging the segments from the rod. Another great objection to packings employing interlocking tongues is the breaking and lcrushing of these tongues while the ring is in active service, which greatly decreases the efliciency and life of the packing.

Therefore the more essential purposes of my invention are to provide a packing that will obviate the above objections and one that may be readily disengaged from its position around the rod withoutdamaging the segments or disturbing thev rod.

Finally, the object of the invention is to provide a device of the character described that will be strong, durable, and eiiicient and comparatively simple and inexpensive to make and one that will be operative throughout its life.

lith the above and other objects in View the invention consists of the novel details of construction and operation, a preferable embodiment of which is described in the specilication and illustrated in the drawings, where- 1n- Figure 1 is a central vertical sectional view taken through a portion of a cylinder-head, showing the packing therein. Fig. 2 is a view in elevation. Fig. 3 is a detail elevation of one of the segments. Fig. 4 is an inner face view of one of the segments. Fig. 5 is a plan view of the packing-ring.

In the drawings the numeral 1 designates the segments or sections of which the ring is composed. Ordinarily I employ three of these segments; but where packings of considerable diameter are employed more segments may be used. Each segment comprises tongue portions 2 and 3, having inclinedends A and 5 substantially parallel to each other. The tongues 2 and 3 terminate at their inner ends at the base of oppositely-extending inclined shoulders 6 and 7. It is to be observed that the segments are cut away on opposite sides to form the tongues 2 and 3 and that the tongues lie on opposite sides of the central diametrical axis of the ring when the segments are assembled. The segments are preferably formed, as shown in the drawings, with the flattened outer faces 8 and rounded edges 9, which terminate flush with the inner faces l() thereof. When the ring is assembled, two of the segments are placed about the rod 10a and the third 'segment pushed into engagement with the first-named segments. It will be readily seen that any one of the segments may be easily disengaged from the others without disturbing the relative position thereof. When assembled, the tongues 2 and 3 overlap each other and the shoulders 6 and 7 register with the inclined ends 4 and 5, thus producing a ring the parts of which are held against lateral displacement, but which are readily movable radially. The packing-ring thus formed is preferably inclosed in a vibratingv packing-cup 11, which has a concaved bottom shaped to lit the contour of one of the rounded edges 9 of the ring and lits snugly about the rod 10a. Afollower12, having aconcaved face, engages the opposite rounded edge of the ring and is yieldingly held within the cup and in contact with the ring by means of a coiled spring 13 which lits around the collar 14. The spring 13 rests in an annular recess 15, formed in the stuffing-box 16. The cup l1 bears against the shoulder 17k of the gland 18, which is suitably secured to the stuingbox by means of bolts 19. l

The packing-gland and stuffing-box and the cup and follower construction just described form no particular part of my invention and;

are employed as a preferable means of supporting the packing-ring in its operative position.

From the above it Will be apparent that by disengaging the bolts 19 from the stuffingbox 13 and moving the gland 18 along the rod 10, then slipping the cup 11 also along the rod, the packing-ring is exposed and any one of its segments may be readily removed Without disturbing the relative position of the rod, which has heretofore been necessary in order to remove the ring or the segments thereof, as Where the segments interlock they could not be disengaged Without breaking the locking-tongues or sliding the rod out of engagement with the ring.

Another advantage gained by the construction herein set forth is the obliterating of the locking-tongues, which have generally been made small and comparatively thin and easily broken, thereby decreasing the efficiency of the packing.

vthe end 4 and formed at its opposite end with the oppositely-disposed tongue 3 having the inclined face adapted to register with the inclined shoulder 7 and the inclined shoulder 6 adapted to register with the end 4 When the segments are assembled, the end 4 and the shoulder 6 extending entirely across the segment.

HAROLD P. TIPPETT.

In presence of- M. B. SGHLEY, W. L. MoRRoW. 

